Presolicitation DEPT OF DEFENSE DEPT OF THE NAVY is seeking an adapter for night vision equipment. This item is used for repairing and modifying night vision devices. The procurement is for 46 units and delivery is FOB origin. The item requires Government source approval due to its flight critical nature and lack of adequate technical data for full and open competition. Only previously approved sources have been solicited. Interested parties must submit the necessary information for source approval along with their proposal. Failure to provide all required data will result in disqualification. The proposed contract action is non-competitive, but all proposals received within 45 days will be considered. The Government is not using FAR Part 12 policies for this procurement. Interested parties with capability to provide a commercial item should notify the contracting officer within 15 days.